Hey!
2009/12/29 Gus Correa :
> Hi Ilya
>
> OK, with 28 nodes and 4GB/node,
> you have much more memory than I thought.
> The maximum N is calculated based on the total memory
> you have (assuming the nodes are homogeneous, have the same RAM),
> not based on the memory per node.
Yep. I know. I've p
Hi all,
I am new to Open MPI mailing list. Just started using it for our proprietary
interconnect
which uses uDAPL1.2 as underling network.
As our experience with other open source MPI2 implementation libraries, they
are deprecating udapl ADI.
and giving more n more support/enhancement to gen2
Dear OpenMPI list,
I have used the dynamic rules for collectives to be able to select one
specific algorithm. With the latest versions of openmpi this seems to be
broken. Just enabling coll_tuned_use_dynamic_rules causes the code to
segfault. However, I do not provide a file with rules, sin
This is the a knowing issue,
https://svn.open-mpi.org/trac/ompi/ticket/2087
Maybe it's priority should be raised up.
Lenny.
On Wed, Dec 30, 2009 at 12:13 PM, Daniel Spångberg wrote:
> Dear OpenMPI list,
>
> I have used the dynamic rules for collectives to be able to select one
> specific
Interesting. I found your issue before I sent my report, but I did not
realise that this was the same problem. I see now that your example is
really for openmpi 1.3.4++
Do you know of a work around? I have not used a rule file before and seem
to be unable to find the documentation for how t
The only workaround that I found is a file with dynamic rules.
This is an example that George sent me once. It helped for me, until it will
be fixed.
" Lenny,
You asked for dynamic rules but it looks like you didn't provide them.
Dynamic rules allow the user to specify which algorithm to be used
Thanks for the help with how to set up the collectives file. I am unable
to make it work though,
My simple alltoall test is still crashing, although I added even added a
line specifically for my test commsize of 64 and 100 bytes using bruck.
daniels@kalkyl1:~/.openmpi > cat mca-params.conf
it may crash if it doesnt see a file with rules.
try providing it through the command line
$mpirun -mca coll_tuned_use_dynamic_rules 1 -mca
coll_tuned_dynamic_rules_filename full_path_to_file_ .
On Wed, Dec 30, 2009 at 5:35 PM, Daniel Spångberg wrote:
> Thanks for the help with how to set up
That works! Many thanks!
Daniel
Den 2009-12-30 16:44:52 skrev Lenny Verkhovsky
:
it may crash if it doesnt see a file with rules.
try providing it through the command line
$mpirun -mca coll_tuned_use_dynamic_rules 1 -mca
coll_tuned_dynamic_rules_filename full_path_to_file_ .
On Wed, D
Hi Ilya
Well, many possibilities to explain the error have
been discarded already.
Another long shot:
Have you tried to set the processor affinity?
Not sure how it would work on Xeons.
We have AMD processors here, and setting processor affinity
does help performance, on HPL and other programs.
I
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